If P8 and P9 represent the population of West African in 1978 and 1979 respectively, and given that in 1979. D= number of deaths, B= number of births, I= nu...

Question 1 Report

If P₈ and P₉ represent the population of West African in 1978 and 1979 respectively, and given that in 1979.

D= number of deaths, B= number of births, I= number of immigrants, E= number of Emigrants. Then the size of the population in 1979 is given by

P₉ = P₈ + D - B = I - E

P₉ = P₈ + B - D + I - E

P₉ =P₈ + B - D + E - I

P₉ = B - D + I - E

P₉ = P₈ + B + D + I + E

Population

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